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SHOP: Simple Hierarchical Ordered Planner

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TLDR
In the authors' tests, SHOP was several orders of magnitude faster man Blackbox and several times faster than TLpian, even though SHOP is coded in Lisp and the other planners are coded in C.
Abstract
SHOP (Simple Hierarchical Ordered Planner) is a domain-independent HTN planning system with the following characteristics. • SHOP plans for tasks in the same order that they will later be executed. This avoids some goal-interaction issues that arise in other HTN planners, so that the planning algorithm is relatively simple. • Since SHOP knows the complete world-state at each step of the planning process, it can use highly expressive domain representations. For example, it can do planning problems that require complex numeric computations. • In our tests, SHOP was several orders of magnitude faster man Blackbox and several times faster than TLpian, even though SHOP is coded in Lisp and the other planners are coded in C.

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References
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Proceedings Article

Linkability: examining causal link commitments in partial-order planning

TL;DR: This paper describes a series of domains in which PRODIGY4.0 consistently outperforms SNLP, and introduces the concept of linkability to characterize the class of domains for which this happens.
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Using Guidelines to Constrain Interactive Case-Based HTN Planning

TL;DR: HICAP is described, a general-purpose, interactive case-based plan authoring architecture that can be applied to decision support tasks to yield a hierarchical course of action and should be useful for assisting with planning complex tasks such as noncombatant evacuation operations.
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Formalizing the PRODIGY planning algorithm

TL;DR: This work presents a formal description of the planning algorithm used in the current version of the PRODIGY system, based on an interesting combination of backward-chaining planning with simulation of plan execution.
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Integrating electrical and mechanical design and process planning

TL;DR: In this paper, the development of the process-planning module for EDAPS, an integrated system for designing and planning the manufacture of microwave modules, is described, which integrates electrical design, mechanical design and process planning for both the mechanical and electrical domains.
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